Year: 2010

Leaf hydraulic vulnerability is related to conduit dimensions and drought resistance across a diverse range of woody angiosperms

Blackman CJ, Brodribb T, Jordan GJ, (2010) 'Leaf hydraulic vulnerability is related to conduit dimensions and drought resistance across a diverse range of woody angiosperms', New Phytologist, vol.188, pp 1113-1123

Hydraulic dysfunction in leaves determines key aspects of whole-plant responses to water stress; however, our understanding of the physiology of hydraulic dysfunction and its relationships to leaf structure and ecological strategy remains incomplete. Here, we studied a morphologically…

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Augmentation of abscisic acid (ABA) levels by drought does not induce short-term stomatal sensitivity to CO2 in two divergent conifer species

McAdam SAM, Brodribb TJ, Ross JJ, Jordan GJ. 2011. Augmentation of abscisic acid (ABA) levels by drought does not induce short-term stomatal sensitivity to CO2 in two divergent conifer species. Journal of Experimental Botany 62(1): 195-203.

The stomata of conifers display very little short-term response to changes in atmospheric CO2 concentration (Ca), whereas the stomatal responses of angiosperms to Ca increase in response to water stress. This behaviour of angiosperm stomata appears to be…

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Viewing leaf structure and evolution from a hydraulic perspective

Brodribb TJ, Feild TS, Sack L. 2010. Viewing leaf structure and evolution from a hydraulic perspective. Functional Plant Biology 37: 488-498.

More than 40 000 km3 year–1 of water flows through the intricate hydraulic pathways inside leaves. This water not only sustains terrestrial productivity, but also constitutes nearly70%of terrestrial evapotranspiration, thereby influencing both global and local climate (Chapin et…

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Xylem function and growth rate interact to determine recovery rates after exposure to extreme water deficit

Brodribb T.J., Bowman D., Nichols S., S. Delzon and R. Burlett (2010) Xylem function and growth rate interact to determine recovery rates after exposure to extreme water deficit. New Phytologist 188: 533-542.

Motivated by the urgent need to understand how water stress-induced embolism limits the survival and recovery of plants during drought, the linkage between water-stress tolerance and xylem cavitation resistance was examined in one of the world’s most drought…

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Angiosperms helped put the rain in the rainforests: the impact of plant physiological evolution on tropical biodiversity

Boyce, C. K., J.-E. Lee, T. S. Feild, T. J. Brodribb, M. A. Zwieniecki. 2010. Angiosperms helped put the rain in the rainforests: The impact of plant physiological evolution on tropical biodiversity. Annals of the Missouri Botanical Gardens 97: 527-540

The recycling of transpired water is well known to be an important source of rainfall, particularly in the tropics, and angiosperms have transpiration capacities higher than any other plants throughout evolutionary history. Thus, the evolution and rise to…

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Leaf hydraulic evolution led a surge in leaf photosynthetic capacity during early angiosperm diversification

T.J. Brodribb and T.S. Feild (2010) Ecology Letters, 13: 175–183

Angiosperm evolution transformed global ecology, and much of this impact derives from the unrivalled vegetative productivity of dominant angiosperm clades. However, the origins of high photosynthetic capacity in angiosperms remain unknown. In this study, we describe the steep…

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